WowAce

Makes the Blizzard options frame movable and resizable

Tankadin

Makes keyboard bindings for moving the camera

TMrecruit

Displays current LFG Tool times and warns when ready

BadgeWatch

LootWhore

a chat filter for reducing batch crafting loot spam --ALPHA--

Addon to manage WoW titles.

A simple visual combat log with spell/skill icons for Classic WoW

ActionCombat

Checks the details of the inspected player's gear for mistakes and questionable decisions

Hotkey interface for spells, macros, other clickables.

xchar

RuinBossTactics

Moves the character and friends frame tabs to the right

OneRing

Tool for easy task assignments in raids.

With Mists of Pandaria Blizzard publish all characters from an account unless you disable that 'feature'. This addon warns you.

Complete Replacement for Inventory and Bank Bags.